According to the endosymbiont theory, host archaea engulfed ___, which then allowed both populations to survive together.

A. photosynthetic archaea

B. photosynthetic bacteria

C. anaerobic bacteria

D. aerobic bacteria

E. aerobic archaea


D. aerobic bacteria

Biology & Microbiology

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________ activate repressor proteins, thereby decreasing the synthesis of certain enzymes.

A. Modulators B. Corepressors C. Effectors D. Inducers

Biology & Microbiology

Which of the following does NOT describe

some aspect of polysaccharides? a. energy storage b. straight or branched chain c. glucose subunits d. contain only carbon, hydrogen, and oxygen atoms e. produced by condensation reactions

Biology & Microbiology

Somatic sensations originate from receptors that are present in more than one location in the body.

a. true b. false

Biology & Microbiology

To initiate transcription in bacteria, RNA polymerase must identify and bind to?

a. the -10 and -35 regions of the promoter b. only the -10 region of the promoter c. only the -35 region of the promoter d. the transcription termination site

Biology & Microbiology